1670505525 has 240 divisors, whose sum is σ = 3629767680. Its totient is φ = 752716800.

The previous prime is 1670505523. The next prime is 1670505541. The reversal of 1670505525 is 5255050761.

It is a happy number.

1670505525 is a `hidden beast` number, since 16 + 70 + 50 + 5 + 525 = 666.

It is not a de Polignac number, because 1670505525 - 2¹ = 1670505523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1670505525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670505521) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 18769681 + ... + 18769769.

It is an arithmetic number, because the mean of its divisors is an integer number (15124032).

Almost surely, 2^1670505525 is an apocalyptic number.

1670505525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1670505525 is an abundant number, since it is smaller than the sum of its proper divisors (1959262155).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1670505525 is a wasteful number, since it uses less digits than its factorization.

1670505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 1670505525 is about 40871.8182247866. The cubic root of 1670505525 is about 1186.5406974586.

The spelling of 1670505525 in words is "one billion, six hundred seventy million, five hundred five thousand, five hundred twenty-five".